Hi there,
May I know what services you require, exactly? If you want to grow your follower base, want tweets posted and want your impression rate maximised, I may be able to help. I'm a writer by profession, but I did some research on Twitter for my own account, and now handle a few accounts - two friends' accounts, my own account, as well as a client's account (for a fee).
The first month, I'll charge $100, and depending on how much work is required, I may raise or lower that the next month. In all likelihood, I'll lower the amount, as this generally requires around 40 minutes' work daily, for an easy account.
I can also engage with your followers, send messages and remove spam on your behalf. If your account's completely new, that's not a problem either.
I aim to get at least 300 new followers per month, and I send regular reports. My service may be higher priced than most others, but you'll have the satisfaction of knowing that your project is in the hands of someone who, being a writer, knows how to deal with people. Additionally, I do not follow accounts which are auto-posters and which are not likely to see your tweets. I only follow genuine people who I have reason to believe will like your content, and follow back. I do this with the help of filters, and personal understanding.
I look forward to hearing from you.
Thanks,
Priya