I'm a new passport applicant and my guarantors passport expired January this year, can i still use ii in my guarantor's form?

And secondly when i was filing the online application, i saw space for just maiden's name and i filled in my other name ''Deborah'' i did not add my surname. And this Deborah is not on my documents. After i finished the application and downloaded the form, it turned out showing Mother maiden's name. And Deborah is not my mother maiden's name its my fourth name.

Will there be issues on the day of capturing? Or can it be corrected in cybercafe?

Pls i need response... Thank you.