Dear Honorable Employer,
I will give full refund if you are not satisfied with the quality of work. I am a new freelancer here but have a 7 years experience in these kinds of tasks. Would you like to exemplify them, on chats? I am also requesting you to kindly provide a sample task, prior confirming, so that I reassure you with the quality of service I provide.
Happy to walk you through my best works on a call or chat.
Thanks for your time to reading my proposal.
Regards. Anam.