It's possible to say 'Thank you to you' as a response to 'Thank you', but it's not especially common. If we say this, we often add a 'too', as in 'Thank you to you, too.' We can also respond by stressing the 'you' in 'Thank you', for example: 'Thank you.' 'Thank YOU. I couldn't have done it without your help.' Note that this only works with the full form, 'Thank you', not the abbreviation, Thanks'. The phrase 'Thanks to you' is used differently, as part of a statement such as 'Thanks to you, the event was a complete success.'

You could've simply say: "Thank you, too" or "Thank you as well". If it is a conversation you can say: "No, thank YOU." (emphasizing the word) "Thank you to you" sounds redundant to me, unless you're saying "she said 'thank you' to you", which means, she told you to give this message(her gratitude) to him. Otherwise, you can give this reply: "it's my pleasure" "no problem" "you're welcome" "right back at you" "anytime"

It is correct to say "Thank you too" if someone has said "thank you" and you are saying it back. I hope that's what you had meant :)

Cuando lo que quieres es expresar que no quieres recibir unas gracias, quizás el ejemplo que has puesto es demasiado literal. En inglés hay varias maneras de expresar un "de nada", como: - Don't mention it (no lo menciones) - It's my pleassure (un placer) - Anytime (significa que estarás siempre dispuesta a dar ayuda) - It was nothing (no fue nada) Espero haberte sido de ayuda. ¡Un saludo desde Cádiz!