Telkom network coverage

I have been asking Telkom to fix network coverage where I'm staying since 2019 but till to date I'm still struggling with network. I have a contract with them I pay for data that I cant fully utilize. their system show that there is no network coverage in my area and all this started last year around August I have been with Telkom since 2016 December and everything was fine up until last year. when you call them they ask you to send GPS coordinate and they never acknowledge the receipt of coordinates, no communication after you sent those coordinates but all of a sudden you receive an SMS saying that your case has been resolved while sitting with the same problem. when you want to terminate the contract they want to charge you cancellation fee whereas it is their problem that there is no network coverage because I have been staying to the same address since 2016 when I first took a contract with them. I cant wait for the contract to end I'm not upgrading.