I don't think that Warco will supply by post/carrier, except with a machine. You can buy / collect from their stand at shows.
Would not have thought that EP90 would be a suitable cutting fluid. The Extreme Pressure feature could well prevent the tool forcing its way through the oil film.
Even neat cutting oil will show this at times with a very fine feeds. The tool advances , barely cutting, and then the swarf comes flying of for a short time, before the process repeats itself.
Howard