Internet

You know, im appalled by the service im receiving from cell c. My phone shows full signal on both sim cards and as soon as i connect to internet, signal drops to basically zero on the sim im using. If i switch to other sim, same problem persists. Have changed devices, done numerous speed tests logged i cant remember how many support tickets. said i must do sim swap. In town i get outstanding signal. Since 4months ago my signal at home has been a mess. 4 months I've tried getting a solution or a reply from them. Yes sir, it will be escalated to our technical team. And do what exactly? Do they even know what that term means? I have been to the store itself to log the network issue, a form has been filled in and sent off to them(apparently). I told them i suspect a tower is faulty but alas. Since then i have received ZERO response. I do plenty work at home and international videocalls. I cant afford this **** service. I've stayed quiet long enough.