shocking process when paying up in full a contract

i want to pay up my contract now in full, but you have said that then once it is paid up i wont get my free minutes and data every month for the remaining months left in the contract which i am paying you in advance??????? this cant be true and i am sure the person and his manager is wrong? i have 12 months left of a contract, i want to pay it up now in full and i expect the free monthly minutes and data to still be loaded on the sim card number....... alternatively i just stop paying, u black list me which i am already done because of car payments covid job... but i am trying to be nice buy honoring my contract to pay it up but do expect my free minutes and data as per the package which i am paying in full......... please explain ?