Sadly you cannot make a Stat Dec on the grounds that the penalty has been paid. The only grounds provided under the London Local Authorities Act are:
2)The statutory declaration must state that the person making it—
(a)did not receive the penalty charge notice in question;
(b)made representations to the enforcing authority under paragraph 1 above but did not receive a notice of rejection from that authority; or
(c)appealed to a traffic adjudicator under paragraph 4 above against the rejection by that authority of representations made by him under paragraph 1 above but had no response to the appeal.
Can't open the links, but it's not essential.
A PCN must state..:
(iv)that if the penalty charge is paid before the end of the period of 14 days beginning with the date of the notice, the amount of the penalty charge will be reduced by the specified proportion;
Issue date 17th gives a latest date on which the only penalty which can be demanded is the discount of 30th, 17th being day 1.
But this cannot be about late payment because otherwise they would be pursuing you for the outstanding surcharged penalty of £65*1.5. But according to you they're pursuing you for £195 which can only mean that a payment, whether £65 or £0.65p was not received.
I cannot see the CC, but somewhere on its face it should say what's been paid - not by deduction and subtraction but in those words. Therefore it would appear than no payment of any type was received at any time.
Check your bank account again, was there a reversal of the 'payment' some time after the 30th? If not, then get on to the council, but not in a confrontational manner, just explain.
In my opinion, do not wait for an OfR
