There is no rhyme or reason with these Insurance company's.
I got caught for speeding (oops!) earleir this year, and when my renewal arrived for £324, I thought I'd better tell them, so I got on the phone.
"From now until renewal - there will be no charge"
Oh no, here it comes . . . .
"And your renewal will be £309"
Less than it was without the SP30.
Where is the logic???