Telus phone support telling lies?

I think I might start calling customer support every month. Each time I do, someone in the call center makes a mistake, which ends up with me getting credits such that my bills are ending up with zero owing after they have to scramble to correct the mistakes.  This time they covered my whole bill for March because they remerged bills that had to be separate for legal reasons (which Telus was told).  They are also investigating how it happened because there was no evidence of human intervention. If the bill that issues on 7April is remerged, Telus will again be paying my bill for me.  Three months in a row with no payments.  As a customer, this is pretty good.  As a shareholder, this is atrocious.  Darren will not be happy with my feedback.