Reinstate medical aid disgusted customer service

I have been trying to reinstate my medical aid since November 2020 already as discovery cancelled my medical aid after i had changed jobs and have informed them of this via email and their whatsapp line. They cancelled my medical aid completely and then sent me a message even though i have been trying to call, email, whatsapp with no luck. Eventually they sent me documents to complete which i have done then after a period of time email me back to say the documents must be hand signed. Because i work terrible hours i can not answer my phone i email from my work email and cc mery personal email which they have been corresponding to me on. So i recieved an email that they will reinstate my medical ai however i need to pay for the months of November, December and January when i had no medical aid as they cancelled it despite mybrequest for them not to cancel it and I rep**** back to question this and they then said they can not help me as the email address is not listed on their records, i jave since sentbthe email from me personal email address they have on record and still have not recieved any reaponse after 3 emails sent to them... This is pathetic as you only help when it benefits your company cause my question why i should pay for months i had no service from you now you dont reply to me?