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Rating Newest Oldest. Best Answer: Xbox Live time stacks up to 36 months worth. The only times they don't stack is in the cases of trial amounts, like 48-hour cards, or the free month offered to the first 3 new Xbox Live accounts made on a system. Source(s): Personal experience.
You can purchase xbox live gold through your xbox if you have signed up for xbox live silver (free). there are 30 day, 3 month, and 1 year options. I pay by the microsoft cards found in any gaming store. The prices are around there for going to the store.