The short answer is No, we will never raise your prices.
The price you agreed to pay for the package you chose will remain the same for as long as you're with us unless you decide to change the package you're on.
As time goes on, however, we do occasionally update our pricing plans, allowances and services, so it is always a good idea to check back occasionally to see if anything has been changed; you never know what you may find.
The only time a price would increase would be if we have to pass on a fee from a registry. For example, if there was a wholesale price increase in .com domain names, then, while we have absorbed cost prices in the past, we may be forced to pass on that increase. We will, however, be entirely open book.