The problem is that generally, a retail trader will not get an IPO allotted, and if by any chance one gets the allotment, then the chances of that IPO going down are very bright as a retail trader would have had invested in an IPO which has not evinced much interest in the IPO.
To get a better chance of allotment try to go for odd numbers. Say if the IPO minimum size of applying is 26 then apply by multiple of 1,3,5,7,9 and so on and maybe more trading accounts can be used for applying for the IPO to increase your chance of the IPO allotment.