HAVING touted daily interest rates of 4.57 per cent in February for their High Interest Money Accounts (HIMA), Tyndall Bank will be dropping their interest rates to the standard deposit rate of 0.5 per cent for accounts under GBP2,500 (about HK$28,900). The move is part of the soon to be introduced tiered structure under which account holders of under GBP5,000 will see their rates cut and those holding more than GBP10,000 will see their rates raised above the current rate of 4.375 per cent introduced inJuly. According to Yvonne Fong, regional marketing manager of Tyndall Bank International, the change was requested by the bank's big depositors. ''We looked at our client portfolio and we think that this is a good move to encourage people to put more money with us,'' she said. Under the new scheme to be introduced in November, those clients with deposits of GBP5,000 or more in their accounts will receive the standard HIMA rate of 4.375 per cent; GBP10,000 or more will receive the HIMA rate plus 0.125 per cent; GBP50,000 or more will receive the HIMA rate plus 0.25 per cent and GBP100,000 or more will receive the HIMA rate plus 0.375 per cent. Clients with sums caught in the band of GBP2,500 to under GBP5,000 will receive the standard deposit rate of 0.5 per cent given to clients with under GBP2,500 plus an added two per cent. Investors with deposits under GBP5,000 are angry about the move and suggest that despite having promoted the HIMA recently, Tyndall Bank is no longer interested in small depositors. In April, rates dropped to 4.625 per cent; in May, they fell to 4.5 per cent, and in July they fell again to the current 4.375 per cent. But Ms Fong adamantly supports the move to introduce the tier in November. ''It's a zero sum game. We have some clients happier,'' she said. Ms Fong also points out that interest rates on offshore deposits will remain competitively priced against other banks. Currently the rates for deposits over GBP10,000 range upwards of two per cent, the highest being Royal Bank of Scotland's Money Market Cheque Account which has an interest rate of 4.85 per cent.