Dear penman 20, I noticed that you invited me to bid on this project. I am a native speaker, and I have an MA degree in a postgraduate essay based subject, meaning that I have excellent English written skills.
I am interested and I would like to know more about the project. Please send me a brief and more information by what you mean as a motivational letter.
Please also message me about the other your role that you invited me to bid on.
I would require $10.50 an hour since this is around the minimum wage in the UK. My total bid ($11.67) includes the sites fee. I would be prepared to do both jobs for you for this wage. I understand that this is above your expectations, but I cannot afford to offer less.
Please message me if you are interested in hiring me, and let me know more about the project, for your description is very vague.