The Steam screenshot from sale 1 has expired, so only 18 keys match IDs, we will need a new screenshot to confirm 21 keys.

The Strange Veteran's Attire (~5 keys at the time) and Strange Flamboyant Flamenco (~4 keys at the time) match in sale 2.

28 was also far too high given the Year long unsold at 25.

The australium knife should round to 20 keys, not 20.5 and subsequently 21 keys.

Ultralow's sale was for 18 keys + <0.5 keys in sweets as seen in this compare: https://backpack.tf/profiles/76561197982127154#!/compare/1624233600/1624320000

New sale:

https://backpack.tf/profiles/76561198389345180#!/compare/1629590400/1629763200 - the rocket was spelled and therefore this sale will be too high here.

I would try and get another screenshot and look at resuggesting this.