Extra Keywords: Each of the extra keywords will have a contract of either six months or twelve months (depending on the option you choose) attached to them starting from the time you pay for them. The contract for each of the extra keywords you choose will be a contract in and of itself and is not affected by any other aspect of the service we provide.
After the contract expires for the extra keywords you can if you wish continue to pay for them on a month to month basis in the same way that you could with the initial contract.