No.
Tavex is a trader, not a producer of the offered gold products.
A certificate for an investment product can be issued only by its manufacturer. It must be an integral part of it and have a unique serial number, both on it and on the product itself. An example of this are the investment gold bars – the packaging is also their certificate, because it meets the above conditions.
Coins are a real means of payment and do not have a serial number.
Therefore, some traders issue information sheets, but not certificates.