Payment not received from the form submission to PayPal

Hi My form named - "Standard contract" has a PayPal function on it for the client to pay £50.00 to my business PayPal. A client has just tried to pay and I haven't received the money.

Can you advise.

Greetings and thank you for your message.

I have checked your form, and you have 2 submissions there. Can you please let us know if your client's submission is one of those two? 

Can you also let us was the client charged for 50 GPB?

Thank you for your cooperation.