some ideas:

0. is this a product people want?

1. you need a free tier or a try for 3 months before you pay. $29/mo is a high commitment.

2. also why not give your service for free to early adopters and get some testimonials.

3. do you have adwords setup? do you know what your target market is? do you know who your competitors are? bid on those keywords and you may get a customer that decides to pay.