Pay joy

What the worst experience i got, i cancelled my contract and i texted them toe find put how far the cancellation process is and was told they don't know anything and never received any communication from the store i bought the phone from, i went to the store to find out as i had received an sms saying im being handed over , it turns out pay joy received communication from the store. Now i am taken from pillar to post for them to fix this. I don't understand how i am supposed to pay for a phone i am not in possession of. Your service sucks pay joy