its simple guys, go to google play store and apple app store and request your money back.
1) the service you payed for was distorted and the product was not as promised or functional
2) the terms and conditions of the competition you payed to play in has changed without your consent after you spent your money.
I already asked for mine back and started the process gree
next time learn to apologize and offer compensation instead of finding way to make more money due to YOUR OWN servers stuffing up OUR WEEKEND TIME and Money.
since they can acknowledge their stuff up but not do anything about it in fear of back clash. lets show them real life / money consequences and see if they stay listed on play store after a few stuff ups like this and upsetting their valued customers.