Multiple proxies under 1 wifi connection

Can multiple proxies be used under 1 wifi connection?

I am looking to run multiple instagram accounts from my iphone and recently purchased 1 proxy so i can accomplish this. Can I use the proxy i purchased for the wifi connection I am using and if so will I be able to run all my instagram accounts from that 1 wifi connection since there is 1 proxy associated with it and the original server IP address as well.

I am getting the error message when i try to access the internet through my iphone while im on the proxie:
"there was a problem communicating with the secure web proxy server (HTTPS)."

Help would be appreciated!

Thanks

Ideally you would have a different IP address for each account. Also, the error you're getting may be because the IP can't connect over a secure connection.

The proxy works on my mac comp but it doesnt seem to work on my iPhone 5. Any ideas whats happening and how to get it to work on my iPhone?