Radio button and signature field problems...please help!

Hello everyone, been having a couple of problems that are really driving me insane. I would hugely appreciate any help you could offer....

Ive spent a very long time creating a contract in Adobe Acrobat Pro that can be prefilled and then sent for signature by the soon to be employee. Generally it works fine but I have two issues.....

1 . When I 'Send for Signature' through Acrobat, the fields for Sender Signature (i.e. mine) only require me to put in text. In fact I cant find a way to add my signature. The fields in Acrobat pro DC are set as Signatures. When I have tested receiving the contract it requests a signature just fine.

2. Lower priority but still amazingly irritating - I cant specify radio buttons as participant 'Signer' only as Sender or something else. How come? I want the signer to fill out a mutually exclusive set of yes/no questions and then sign to say they confirm this information.

Very many thanks again for any help. Yours,

Tom in the UK