can I repaid a subscription for 6 months only

I am paying for a third party use so can I prepaid a subscription for 6 months only and the set the subscription to cancel at the end of 6 month term?

We only have yearly and bi-yearly subscriptions. What you can do is to purchase a monthly subscription, and cancel it anytime you want to, so you can cancel it a the beginning of the sixth month, so it won't renew on the seventh month. Let us know if you have more questions.