They ***** your money after cancellation and hold the refund!

I cancelled my Rain account on the 17th April, and followed instructions to return my router. To be safe, I removed my bank card information from Rain site and my profile in case they attempted to run a deduction in May. I had paid for the full month of April, so I held off returning my router until the 27th April when my fibre line was activated. On the 1st May they somehow ran their deduction, not once but TWICE! How was my card information put back on their site? Why did they run it in the 1st place when I had confirmation of the line cancelled. I noticed these deductions on the 4th May. I called them and reported this on the 5th May. I was told not to worry, the refund will be done that day. Nothing. I called on the 6th and couldn't get through. I called on the 8th and was told that the refund takes 7 to 10 days and that is why the refund hasn't come in yet. All apologies but no one can tell me what is happening. I was told the case would be escalated. I called again today to follow up and told, again, the matter is escalated to billing and will still take 7 to 10 days from TODAY! Again, no explanation for why this is being pushed out. I have had enough of Rain! Don't use them. I changed to fibre because my line was constantly unstable and I was clearly being throttled even though they claim to not throttled their clients, all lies.