Block line for making arrangements and only 1 month arrears

We make arrangements with vodacom to make a payment today 21 /11/2022, they went and block my account/line for only being 1 month arrears, since went is it one month they suppose to give a client at least 3 month missing payment before blocking the account/line, I lost my job but stil try to pay my account but they block your line because one 1 month arrears. Vodacom is giving bad service the last year,