[spectrum]

I'm afraid your logo is not allowed by Twitter: "Do not modify or alter the marks or use them in a confusing way, including suggesting sponsorship or endorsement by Twitter, or in a way that confuses Twitter with another brand." See https://about.twitter.com/press/brand-assets

I'd change it if I were you! Otherwise, very simple and usable service. https://www.pikapay.com/ would be a competitor.

[locksley]

Ahhhhh, but it worked so perfectly!

Oh well, thanks for the heads up :)