CANCELLATION FRUSTRATION

I had to move as my lease expired in March. I called and was explained I will need to pay claw back of R2880 & I explained I need to move my service not cancel. Finally I get to chat on whatsapp and Im told that I cancel the 05/05 and will be effective 05/06. Yesterday (05/05) it was impossible to cancel as I was told I would have to pay and a calendar month. Well 05/06 is a calendar month and nowhere does it say we have to cancel by the 1st of a month. Yesterday the "whatsapp bot" was trying to connect me for a few hours and no luck. This morning I attempt again and this time I'm told I have to wait for the 13/05 to cancel or else I will be liable for the R2880 and will have to return the router!! I AM BESIDE MYSELF AS IM PAID UP AND NEVER SkIPPED A PAYMENT - WHY MAKE THIS SUCH A FRUSTRATING PROCESS. To top it off the agents dont provide same information....PILLAR TO POST scenario. CAN MY SERVICE PLEASE BE CANCELLED ASAP. I will send back your router asap. My service was excepted the 05/04 so I don't see the issue!!!I had an April, May & June invoice when I signed up. CANCELL