Dealing with new type of DoS attack: Hacker flooding website with fake orders

I am a small ecommerce site that has drawn the ire of a competitor.

I have been battling their attacks with repeated adjustments to our firewall.

Today they started making bogus orders to the website, which isnt bringing the website down, but it really is annoying and this is different than the typical brute force attack we get.

Anyone have any suggestions or advice for me?

Any insight on why they would be doing this, instead of their typical attack?

I am slowly going crazy from all this

2 posts were merged into an existing topic: Any advice for an ecommerce site that is repeatedly getting hit with DoS attack?