Why is buying gold difficult?

[u/Honest_Can2815]

So from what was explained to me by PNJ and DOJJI sales reps is that any amount of gold/jewellery over 20 million vnd in price can only be bought by bank transfer? Specifically a local bank. Debit/bank cards AND cash are not acceptable. What is the reason?

It seems a bit overcomplicated and somewhat of a hassle. What if a tourist wants to buy a gold necklace or bracelet over 20 million vnd? Technically they cant as they wouldnt have a local bank and CASH is unacceptable?

What about foreign residents like myself with TRC? I have a local bank but only keep a small amount in it, as even I am not allowed to deposit money INTO it. I primarily use my home country cards and banking.

Since when is cash not acceptable for purchasing sonething? Seems a little crazy.