You can refund

Contrary to what a lot of companies believe, foreign companies are perfectly able to complete and -where allowed- to file requests for refund of local input VAT themselves. Only in countries where foreign companies need to appoint a local representative or where they face language problems they need some help of local service suppliers. Foreign companies could also need help in case of more complex legal questions whether a specific tax subject or tax amount is eligible for refund.

Consequently, VAT plus offers only legal support relating to more complex issues regarding the refund of VAT. For as far as the refund of Swiss VAT is concerned, VAT plus acts as representative for foreign taxable persons -provided the refund requests are prepared completely by the foreign taxable person himself.

For more information: see here