Bad network coverage

Good day Letaba wireless is so disappointing this days is giving problem before Letaba was good network it it was not having issue yesterday they send email indicating that there is issues of slow internet and they also ensured that they will fix and bring back to stable via communication but even today there is no changes and no communication has been made so and network is very poor I can’t work and can open email and again I also spend more money to buy more data so that I can communicate with the family and friend today I called them no one has answer the phone