Galaxy of heroes purchase

I’ve purchased a pack of gems for £10 to purchase two data card packs, I got the reward and they are awful. It implies to give you a variation of characters and what you get is cards for one character. You can get 10-330 and I got 22 in total for two different characters because I bought two packs. I feel totally ripped off. I should of looked more closely but I’ve been really happy up until now especially with other purchases I made through the same game