Estimated Readings Despite Having a Smart Meter

I had smart meters installed earlier this year, yet my statements are still showing estimated readings based on the old meters. I contacted the help desk at the beginning of September and was told that they had not received all the necessary information to process the smart meters but would fix this within a week. Nearly two months later, my statements are still estimated and no one is replying to my emails to the help desk.

Can anyone from Bulb suggest what I need to do to get this resolved please?