You MUST get renewal terms well in excess of 'a week'.
What did you pay last year, and what was your NCB last year?
If you had a full NCB last year, (50%), then the premium will double this year, assuming you don't have protected NCB. If you have protected NCB, have a look at policy wording. With some FBD policies, your NCB is not affected at all following a claim, wheras with other companies and other FBD ones, it is steped back by either 2 or 3 years, that would be going form 50% to either 30% or 20%.
It is very unlikely that you will be able to move if the claim is pending since last renewal.