separator not beeing setup therfore cant sent multiple values

Hi!
I love your plugin.
BUT, I have an issue.
My debugging code looks like this:
It doesn’t show separator but it is setup in the plugin.

*** Service ***
Array
(
    [name] => Suite CRM
    [url] => *********************************
    [method] => post
    [forms] => Array
        (
            [0] => gf_2
        )

    [success] =>
    [failure] =>
    [timeout] => 10
    [delim] =>
    [mapping] => Array
        (
            [0] => Array
                (
                    [val] => 1
                    [lbl] => assigned_user_id
                    [src] => *********************************
                    [3rd] => assigned_user_id
                )

            [1] => Array
                (
                    [val] => 1
                    [lbl] => campaign_id
                    [src] => *********************************
                    [3rd] => campaign_id
                )

            [2] => Array
                (
                    [val] => 1
                    [lbl] => ModuleDir
                    [src] => Leads
                    [3rd] => ModuleDir
                )

            [3] => Array
                (
                    [val] => 1
                    [lbl] => Lead Source
                    [src] => Formularz
                    [3rd] => lead_source
                )

            [4] => Array
                (
                    [lbl] => Nazwa firmy
                    [src] => input_85_3
                    [3rd] => account_name
                )

            [5] => Array
                (
                    [lbl] => Imi?
                    [src] => input_9_3
                    [3rd] => first_name
                )

            [6] => Array
                (
                    [lbl] => Nazwisko
                    [src] => input_9_6
                    [3rd] => last_name
                )

            [7] => Array
                (
                    [lbl] => Wiadomo??
                    [src] => input_18
                    [3rd] => description
                )

            [8] => Array
                (
                    [lbl] => Numer tel
                    [src] => input_11
                    [3rd] => phone_mobile
                )

            [9] => Array
                (
                    [lbl] => Email
                    [src] => input_12
                    [3rd] => email1
                )

            [10] => Array
                (
                    [lbl] => Adres bilingowy ulica
                    [src] => input_87_1input_2_87_2
                    [3rd] => primary_address_street
                )

            [11] => Array
                (
                    [lbl] => Adres bilingowy miasto
                    [src] => input_87_3
                    [3rd] => primary_address_city
                )

            [12] => Array
                (
                    [lbl] => Adres bilingowy postcode
                    [src] => input_87_5
                    [3rd] => primary_address_postalcode
                )

            [13] => Array
                (
                    [lbl] => Adres wysy?kowy ulica
                    [src] => input_45_1input_2_45_2
                    [3rd] => alt_address_street
                )

            [14] => Array
                (
                    [lbl] => Adres wysy?kowy miasto
                    [src] => input_45_3
                    [3rd] => alt_address_city
                )

            [15] => Array
                (
                    [lbl] => Adres wysy?kowy postcode
                    [src] => input_45_5
                    [3rd] => alt_address_postalcode
                )

            [16] => Array
                (
                    [lbl] => W jakiej sprawie pisze
                    [src] => input_19
                    [3rd] => status_description
                )

            [17] => Array
                (
                    [lbl] => Jakiego rodzaju zdj?cia
                    [src] => input_49input_60input_71input_78input_66
                    [3rd] => opportunity_name
                )

            [18] => Array
                (
                    [lbl] => Kwota
                    [src] => input_65
                    [3rd] => opportunity_amount
                )

        )

)

*** Post (Form) ***