You may have seen some dubious-looking Instagram accounts purporting to offer certain services.

Spotting an account offering "wealthy sugar mummy" services that pays up to S$7,000 a week, one person in Singapore, Amos Heng, decided to contact the number listed.

And then brutally troll whoever was manning the account.

He documented his entire chat in a Facebook post on May 19.

Here's how it went down.

Sent photos of women to choose from

Heng started out by giving basic fake details about himself, before the alleged scammer sent him a bunch of photos of women to choose from for him to service:

Heng was asked to send a photo of himself, so he sent a photo of a "famous Chinese blogger" he found online.

Heng was then sent a bunch of photos, which he said are "probably hijacked and used without permission".

Reviewing terms and conditions

After choosing one, he was sent a bunch of terms and conditions to review, which included an initial payment of S$400 he had to make before the sugar mommy could "meet in the hotel" with him.

Asked for a review

Heng asked for a review from previous sugar babies, and was sent a clip of a man saying that his sugar mummy had paid him S$6,000.

In the video, the man could also be heard saying: "Come on friends, it's true and trusted."

Stalled for time further

After stalling for time and then sending (internet-sourced) pics of male appendages, the alleged scammer threatened to call it off if he didn't pay up.

He was then given bank account details to make the transfer.

Heng then sent a fake screenshot of a receipt indicating that he had made the transfer.

The alleged scammer, unamused, sent angry emojis while questioning him: "Why you send fake receipt here, you send me a fake receipt???"

By 1:36am, a good three hours or so of talking to the alleged scammer, Heng noticed that his messages were only getting one grey tick.

It was suspected that he had been blocked.

You can see the full post here:

Top photo via FB/Amos Heng