May I know what plan to sign from revecom ? TPP-Catalog or the other one?

If you're asking which plan to sign up with because you provide only services; the answer would be TPP.

From their web page:
The TPP SALE is designed for merchants selling intangible products such as information or services via their Web Sites

The TPP CATALOG is designed for merchants selling tangible goods via their Web Sites

so TPP sale is for intangible products like web hosting