Can my credit cards be frozen? I've been diagnosed with advanced prostate cancer and will be off work for 6 - 8 months

Hi my name is john,

iv just been diagnosed with prostate cancer, which has spread to my lymph nodes.

I will be having chemotherapy from the 27 June and the doctor 

Told me I will def be off work for 6 to 8 months. I have three credit cards to pay each with about three thousand to pay.

is it possible to freeze them till I’m able to go back to work 

anyone know