Cant connect wordpress to WooCommerce

Hi everyone,

I have installed the plugin and i already have paid for my e-commerce pack with bigbuy. The thing is i try to follow the instructions but i cannot synchronize my site with big buy. When i try to log in to multi channel intergration platform via the pluging it doesnt ask me for login information. Instead it takes me to multi channel dashboard. When i go to software e-commerce doesnt give me an option in woocommerce to add a product. It only has the important notice and the buy order but i have already bought it. Can you help please????