We can do this for domain names and hosting accounts. We can change the billing cycle to a shorter period for hosting (monthly or quarterly) and for domain names we can reduce the billing period to annually. This can massively reduce the amount payable on your invoice to renew your services.
Simply log a support ticket requesting "Please make my invoice smaller" and also advise on the Invoice number in question if you can as this will speed up the process.
As always if you have any questions please do contact the helpdesk for more information.