Dunno about long term use of Markus. Most say good but the price is half of 1k. 
The one I am using currently is Ikea Millberget: https://www.ikea.com/my/en/p/millberget-swi...black-50339414/
@RM300 or so. Bought around 280 iirc.
Quite nice. Been using it for more than a year now, and it's alright for me to sit on it for the whole day if I've got nothing to do. The back is fairly tall enough that I could rest my head on it also. Thigh support is alright for me, and it's wide enough to sit cross-legged. The downside is its full leather, so on hot day I'll put a seperate lumbar mesh support so that my back won't all touch the leather and has some room to breath. For me berbaloi la, as my previous chair was those chair you see at majlis ones.

There's also the cheaper one I tried: https://www.ikea.com/my/en/p/renberget-swiv...black-60339418/
. It's okay, the lumbar support is a bit straight than I hoped and the arms doesn't have padding.

Still I think for chairs better go try physical. 

becoz its too hassle to return (especially since they dont know Shopee will reimburse shipping fee)

e-banking refund back to wallet, immediately.

It does not refund back to bank account, u have to activate wallet (if u havent yet) and do a withdrawal.
To counter this, next time use your DEBIT CARD instead of direct bank-in / online transfer.

Anyway its pretty common.. especially now COVID-19 will take even longer time.

The seller has shipped out the order. The products are expected to be delivered by 07-03-2020.

If you do not receive the product(s) by 11-03-2020 , you can extend Shopee Guarantee for 3 extra days. Please file for a Refund if you still have not received the product(s) before the extended Shopee Guarantee ends.

All lenovo laptop directly ship from china if u buy from its official website

i think got another plus minus few days before the thing auto cancel. don't ask me why.