If for any reason (,) - comma?

I don't think a single comma would be acceptable, as it would separate "If" from the condition making the reduced sentence:

[If for any reason,] you are not 100% satisfied with the quality of our services, we will refund 100% of your money back.

This sentence does not make sense. (I would also add the percent sign after 100).

However, if you can use two commas and separate the "for" phrase:

If, for any reason, you are not 100% satisfied with the quality of our services, we will refund 100% of your money back.

However, this version with two commas does not flow as well to me as when reading the sentence with no commas.