Unreliable service provider

I have been trying to reach the customer care line since forever,as my data just keeps disappearing.There is forever a large volume of calls one never gets to correspond with anyone except a robot named Tobi.i used to spend something like a gig a day all of a sudden Im exhausting 4 gig in less than 2 hours.spent about an hour with an agent who could assist or advise what was consuming my data...who kept insisting I make this enquiry with a machine..This is really annoying 😭😭

Find this excruciating as Ive been a loyal customer for the longest time,yet...I'm really unhappy with the service provider