Paid for upgrade / confirmed — no domain created

I’m new to this, but will try to be as clear as possible.

I have paid to upgrade my wordpress domain to a .com, and have had the payment confirmed from paypal by email. However, the site won’t redirect to confirm with wordpress, and thus establish the new domain. Therefore, it seems I have paid for a site that I now can neither view nor gain access to. The domain is not yet available directly either (i.e. typed straight into the browser).

The page moving from paypal says that there are too many redirects; I have followed the instructions from Chrome to try and correct this (allowing all cookies etc) but am still nonplussed. Having followed this advice, the only other pointer is that “it is possibly a server configuration issue and not a problem with your computer”. In any case, without the redirect the account, it seems, won’t work.

I hope this makes sense, and am very keen to get some help from anyone, not least as right now I feel I have paid good money for a delicious Friday afternoon headache.

All best-

Markus