BMO Rewards MasterCard Consumer Reviews

Been with BMO for 10 years and have never defaulted and paid cards up every month. Have been offered a $10,000 line of credit which I refused but was also offered an increase in my credit limit which is currently less than $3,000. When I visited the branch and confirmed that I would accept the increase they said that was fine and the online details would confirm the new limit. This has never been done and when I messaged to ask what the issue was I was told my pre-approved credit limit was not accepted by BMO ???? I thought pre-approved meant what it said. Anyway, their communication is poor and disrespectful and I would never accept another financial offer from BMO.