No service for 3 hours everyday!!!

Ever since we downgraded from the R999 package to R499, we having intermittent network issues, we thought it's the cellphone towers or the weather but no. Network will go for 3 hours and words there's no communication whatsoever from you guys. Should nothing be done about this, unfortunately we will have to cancel and move to fibre because this is ridiculous really, every single day it's very bad.