So difficult to make minor changes

It has happened before and it is happening again. This is the third day I have tried to make minor changes to my policy. I need to call the call centre constantly for any feedback. I have been told for 2 days now that they have IT system issues and cannot give me a revised quote and they have no idea when this will be resolved. This is so frustrating as it has happened before and is happening again. I am really at my wit's end and will never in my life recommend this company to anyone. The product is good but the service received is utterly terrible - take it from me as I am a call centre product specialist.