thanks for the suggestion.
You're very welcome 
Do you know how to use the API
In their API section, they've already provided examples for different functions... You just need to replace certain parts with your API key [shown on the top of the page] and few other things that are self-explanatory [e.g. Recipient number, your purchased number, and the message itself].or How I will send sms
Not sure exactly since it doesn't show the process unless I've purchased a number [it's probably a straightforward process].