Aphysan:
From day three i started getting messages calling me a sandbagger
That's usually a knee jerk response for someone grasping at straws because you beat them, or imo very likely someone who is egging you on to rise to higher tiers because, long story short, higher levels bring on far distances..which need better stuff etc. etc = more money for WGT.
WGT has explained about 'anti sandbagging methods' they have applied in many ways, methods that require some amount of scrutiny, to alter the normal progression of members (although they don't explain exactly what, understandably) so if sandbaggers exist they should be evident and/or should be dealt with, or reported, easily.
Yet, it will be common for people to cry 'sandbagger' as their only comeback, or just to make you whip out your credit card, or click on dozens of videos, surveys etc. to siphon money into WGT.