Would you try to contact Your boyfriend through his brother?

[seeking]

He said that he talked to my ex boyfriend and he loved me. That he said he loved me and that he could see it...
at this point I stopped trying to get in touch with him...

It's a bit confusing. Can you clarify the several "he"s in these sentences..? Who talked to your ex boyfriend and who still love you and who could see it?

[Baslero]

By exboyfriends brother said he could see my ex boyfriend still loved me

[EvenOlderButWiser]

So you've clarified that your ex still has feelings from you. (Phew, I thought for a minute his brother was coming on to you there )

How do you feel about him?

Involving a third person in relationship woes is never really a good idea, especially where that third party is not exactly neutral.

Your ex sounds like he's a stubborn asshole, who always takes the "Im right and your wrong" attitude, and he thinks that by punishing you he's making a point.

Ask him directly for your money back, or take him out to dinner. It sounds like the choice is yours to make.