I live in Russia and cannot buy discounted items through the site!

Hello, I saw on your website you have glides at a discount, I’m from Russia and I can’t buy them through the site, since you don’t have payment in rubles on your site, only through Aliexpress, I saw that there are no discounts (sales) on these glides on Aliexpress , Why? Is there some kind of promotional code for a discount or something like that for aliexpress for these glides or will I have to buy it at double the price than on the official website? The name of the glides on the website is Jade DIY Mouse Skates – Universal 0.8mm PTFE Dots.
On aliexpress they cost about 14 or more dollars, translated into Russian rubles, and on the site now they cost 6.99 dollars, which is unfair, if possible, is it possible to provide some kind of promotional code for a discount or reduce the price of these glides on aliexpress, because that prices on the website are reduced, but on Aliexpress they are old or even more expensive than without a discount on the website! The name of the slides on Aliexpress is Universal point rollers for the X-raypad Jadde Speed ​​DIY mouse.