Hi,
I would be happy to write an email response for you, I've had a lot of practice.
I can match the tone, be it formal or casual and reply in an appropriate manner.
The minimum bid allowed by Freelancer is the job price offered, in this case $5, however this translates to $10 when their fee is added. I am happy to do it for $2.5 which should cover the fee and keep you within your budget.
Please feel free to get in touch if you would like any further information.
Many thanks,
Seonaid