Bad service

So after being with Cell C for over 15 years (two contracts), I will not be renewing my subscription for their bad service. I've logged a call on 29th Jan 2021 and till today I have not heard from their technical team as promised. Since this migrating, I have not being able to send or receive SMSes (surprisingly this happened on same day within an hour apart from each other on both numbers) including appalling data connectivity. I've check and I do have enough airtime and 953 sms which I cannot use. I even went to a Cell C shop which was clearly waste of my time becoz they could not help. I took the liberty to make follow ups myself but get put on hold for almost 20 minutes whilst waiting to be put through to a technical assistant. Good Bye Cell C very dissapointed