Keep updating high-quality content and keep your money for real quality links (guest post from high authority niche sites and do-follow from niche related PR sites, for example)
You really don't need mountains of links to rank. Few high quality ones are enough.
Don't trust too much the...
Bought a SEO package here in Aug,2022
This is what happens then to our site.
I would say... some SEO packages sold are good to improve "your" rank, as long as you buy them for your competitor.
I guess this is the so-called "Negative SEO" ??
You should be very cautious on this topic.
China is full of "fake manufacturer" scams. Mountains of bogus "with desk and laptop only and one people" companies out there with fake identity, source and resell without control.