Submitted form has incomplete and wrong information

[Svext]

Hi all
Im on spouse visa expiring on 20th december 2017, today while paying for health surcharge i have mistakenly paid for the application aswell, and my application was still incomplete and it has alot of wrong info as well as i dont had all the documentation handy, so i was just entering anything and clicking next. To cut long story short i have now submitted a Flr (m) which has incomplete and wrong info like passport numbers of my kids are entered wrong (they are british), i have not entered social securitu number of my partner and selected that he doesn’t has got one. And he is self employed however i have selected that he is employed... now my question is what do experts suggest should
1- i withdraw my application and resubmit the new one as i still have got one month in my visa expiry and i know that i wont get the £993 refund
2- or should I continue with this application and send the covering letter stating the mistakes and new filled application form
3- should i ask my bank that the payment was not authorised by me and ask for refund from the home office (sorry to be develish).
Plz keep in mind that i have got all my documents with me, i have not send them anything yet.
Any urgent help will be highly appreciated.
Thanks

[Svext]

Can anybody help please?