Beware of the state tax scam!

Initially, I bought a proxy service from Korea for a Lightstick. At that time, I was given a discount and only paid Rp 500,000. The proxy seller never mentioned having to pay customs tax. When the item arrived at customs, I was suddenly asked to pay Rp [PHONE] because they said the seller didn't have that amount to pay the customs tax. Honestly, I was shocked when I was told this because from the start there was no mention of customs fees, and they said after I paid, the money would be returned, with the reason "I don't have the money to pay this 2 million, but after you transfer, I will return the money within 5 minutes." From there, I became suspicious. Initially, the seller was a woman, but when I called, it was a man claiming "this is her husband helping with customs." I didn't believe it and asked for my money back, but the seller refused. I even forced them to give the customs address where they were so it could be resolved, but the scammer/seller refused and instead rambled and pressured me to pay immediately. An hour later, I was called by this number claiming to be from the national tax office. I was threatened with criminal charges and told that to be free, I had to pay Rp 8 million. The tax scam said if I paid, they wouldn't prosecute me, but the case had to be kept secret. Honestly, it was very strange. They pressured me to pay quickly or face legal action. Clearly, the number calling was not the official tax office number. So I blocked all their numbers and stopped contact, but it seems they will create new numbers to scam me again...