As a weekly Business traveler from LHR to Warsaw LOT has been my choice for nearly 2 years mainly because of the convenient scheduling even though on average a business return costs approximately £100 more than with BA. Until recently all was going well with the occasional delayed flight which is normal. In the last few months all this has changed. LOT now have a policy of cramming their flights to capacity - as most passengers fly economy the result has been the compacting of business class to 2 or 3 rows with all seats occupied 6 across. The last 3 weeks I have been sandwiched into already small seats with no space to work or even sit comfortably. On one occasion upon entering the plane I was confronted by a 140kg woman in the middle seat with a crying baby on her lap. Her body occupied fully a third of my seat & I didn't fancy 2.5 hours under her bulges & a crying baby for company. When I pointed this out to the stewardess I was met with a shrug and told "flight is full". I asked how was I supposed to even sit here discretely so as not to offend the passenger concerned & was met with total indifference. Last night was the last straw same situation yet again with same uncaring attitude of the flight crew. I took my bag and left the plane. I went to the customer service desk where there were 5 staff 1 of which was working with a queue of customers 1 on the land line phone presumably to a customer 2 women on mobiles who I can only assume were on private calls due to their demeanor - the 5th woman resting with her head in her hands & elbows on the counter all with closed signs. I asked for the station chief and was directed upstairs to his office . On complaining of the situation again I was met with total indifference. No apology or attempt to placate me was made shrugs and said flight was full. Apart from the fact that a business ticket is purchased for just that reason to work the absolute apathy & uncaring attitude of the staff mean that I will never use this airline again & bodes very badly for their future as a competitive service provider to business users. I wonder if enough business fliers like me who spend in excess of 120000zl a year were to leave them would they even notice or care. I don't think so. This is definitely a leftover from the days of the Politburo and hopefully it will soon meet the same fate.