Just bad luck, part and parcel of this hobby, contact the dealer/s involved
However the watches you mention are not particularly accurate, and it seems you over payed too. The "ultimate" or "perfect" LV, and Sea Dweller sold by the dealers here are average reps accuracy wise, and usually overpriced..... However WM9 makes (or will soon make) the same watches to a much better degree of accuracy, those are the watches you should have purchased. The watchmaker9 Yachtmaster for example is the best Rolex rep you can buy!
As for the DeepSea rep, none of them are accurate, they all have different flaws. Why buy just Rolex reps? There are other brands, get a Breitling, Chopard, Tag, Hublot, or one of the many other brands, there are some amazing reps out there, and if you must have Rolex, search for WM9 (watchmaker9) he makes the best Rolex replicas by a long, long way....
Cheers!