Worst communication and customer service

Since after maintenance which was last week 19 August My Wifi lost connection, I have been contacting them from the 20th agents answer and drops once I advise them about the connection issue they either drop and the last agent advised she has escalated the matter and that was Friday evening contacting them myself since than no further communication was made I was told about another maintenance for Today, it's almost 4pm NOTHING no COMMUNICATION

The worse service provider but they quick to send us invoices I work from home, I had to alternate and by DATA to connect and work