I really can't thank you enough.

I can't thank you enough.

I can hardly thank you enough for your kindness.

How can I ever repay your kindness?

I have no words to express my appreciation.

Thank you for your help.

That's really nice of you to help me.

Thank you for your help.

Thank you for helping me.

I am so grateful to your help.

He has been very helpful to me.

He has been a big help to me.

He has been a great help to me.

Thanks for everything.

Thank you for what you have done for me.

Thank you so much for everything you have done for me.

I'd like to thank you for what you have done for me.

Thank you anyway.

Thank you all the same.

However, I appreciate you all the same.

I'd like to express my gratitude to you.

I'd like to express my appreciation to you.

I want to express my thanks.

Thank you for your advice.

Thank you for your suggestion.

Thanks for offering.

Thanks a lot for your present.

Thank you for your gift.

Thank you so much for your gift.

Thanks for telling me.

Thanks for letting me know.

Thanks for the informing.

Thanks for you encouragement.

Thanks for cheering up.

Don't mention it.

You're welcome.

My pleasure.

Not at all.

Forget it.

It's a pleasure.

It's not worth mentioning.

That's quite alright.

At your service.

It's my pleasure to help.

I'm glad to be of some service.

I am glad I could be of any help.