Then in 1929, the tax was doubled. Riots broke out in various cities, and a big team escaped to Bahrain and asked for protection through the British consul. The governor of Qatif responded with intimidation and mass imprisonments. Quite a few notables wrote letters to King Abdulaziz voicing their grievances. https://isocialfans.com/story3972389/eastern-province-things-to-know-before-you-buy