CANCELLATION REQUEST NOT BEING HONOURED BY RAIN

I cancelled my Rain subscription on 3 April, just after a debit order went through on my account. I received a cancellation email to that effect. 3 May, a debit went off my account again, called them again and cancelled and asked why it was not cancelled and why the debit, because when I spoke to an agent in April, I was told that there would be no more debits. The agent could not provide an acceptable answer but a cancellation was put through again. so now its June, and yet again another debit went off my account.

How long will this be going on for??

Dont know if Rain agents do not understand what it means when i want to cancel my subscription!!!!