Test calls not delivered

[sup...@icnventures.com]

Well, I was pretty excited to read up on how easy Mogreet was to use, the pricing, the documentation.  Unfortunately, I used the "API Explorer" page to try to send some test messages to my cell phone (Verizon).  The SMS message I sent was delivered.  Of the 4 MMS messages I attempted to send, only 1 was delivered and it did not have the image I sent.  Anybody know anything about this test page?  Reliability of this as a solution?