Can I have a number for one SMS only?

No matter how many messages you'd like to receive. All inbound messages are free of charge. You just have to pay for number operational fee.

https://www.groovl.com/pricing

Some information we feel will be useful for you:
—  Can I be sure that number wasn't used before?
—  How many numbers can I have under my account?
—  Reuse
—  Why is number partly masked?
—  Why my phone number is gone?
—  How to restore released number?
—  Can I exchange my number?
—  Can I have a number for one SMS only?
—  How many SMS numbers you can provide?
—  What type of phone numbers you provide?
—  Number expiration
—  Turn off auto renew