I have not seen your query listed before now but would apologise on behalf of my colleagues for the delay. This type of delay is not the norm.
I believe that you should wait until the civil ceremony has been registered before lodging the CP visa application as part of the supporting evidence would be the registration certificate.
However, this does not mean you cannot start drafting the application and gathering the relevant supporting documentation. Your partner would be your sponsor.
The current rules (paragraph 281 of the Immigration Rules) that apply for CP visas can be accessed by clicking on the link below:
Broadly speaking, you both need to be at least 21yrs old, you both need to have physically met each other and have an intention to live together permanently in the UK. Your sponsor needs to be settled in the UK.
In terms of supporting documents, this depends on the individual case but usually includes: sponsorship declaration/letter highlighting that sponsor undertakes to maintain and accommodate you; evidence of sponsor's financial standing (3mths wage slips and bank/savings statements); evidence that you can be adequately accommodated by the sponsor (property assessment report for your sponsor's residence that certifies that there would be no overcrowding caused by your living there); if sponsor rents, tenancy agreement with letter from landlord that your occupation would not be a problem, that there are no rental arrears and the tenancy is to be renewed; if sponsor is owner-occupier, office copies for property, latest annual mortgage statement and recent utility bills; and evidence of your personal circumstances.
Hope that clarifies the situation. Kind regards
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