Purposely manipulate the chart!

I've been a client of this broker only for a few weeks. My trading went smoothly ever since i opened an account with thebroker until recently. If you refer to the photo attached below, you can make a comparison of between the broker's chart and a different broker's chart. After i made a new deposit due to their interesting bonus, my position was liquidated out of nowhere. At that time, I placed the orders according to the signals given by the adviser (to sell 30 lots at 1,912.49). But the platform automatically closed my position soon after I noticed that the candles suddenly rose to 1,919.06. I was surprised and had a vague feeling that there was something wrong with the platform's data, which seemed like being manipulated. Therefore I compared it with the highs on other platforms in the same period and found that the later ones only ranged between 1,913 and 1,914. The KENFORD responded that “the reason for difference in the price vs other platforms is that there is a huge inflow of trade at that period.” This explanation, however, doesnt make sense at all as high liquidity will only keep prices stable rather than volatile.