No assistance for money account

I have opened a money account with old mutual and I had to block the card last year as I suspected *****. This didnt block the account as I could still save money in the account. I went to the walk in centre and the advised me to upgrade my app, still this couldnt unblock the account. I have been trying to call their call center but the calls go unanswered. I have sent messages to their help desk and still no assistance. Your service is bad and poor. I'm even thinking of moving all my policies to other insurance firms as you cant assist me in my time of need. You are unproffesional and dont care about your customers. I want my money!