Very Poor Service

Extremely poor service from your call centre. i received an e-mail showing my new premium from 1 April 2020. I mention to the call centre agent that i am on price lock and their should be no increase. He could not assist me. He wanted me to sms another number for assistance. This is not acceptable. I should be assist with one call. I requested to speak to the call centre manager. I was then put on hold for 20 minutes with no assistance.