The article as translated by the OP indicates only cash deposits are affected by this new rule. Not wire transfers, not money transfers from abroad, not checks deposited (which always had various hold times).............just cash.
Again the cover story, and it may be legitimate, is likely to prevent large sums entering the banking system and then wired out........a classic, but old and unsophisticated, money laundering scheme.
Or, given the recent financial difficulties engulfing the DR, it is a means to hold that cash and play the float for fifteen days. It is no secret the DR has experienced a hit to its economy and it has primarily affected the tourist component that supplies a large portion of hard currency to the government. That currency is then used to pay off debt obligations denominated in dollars. So when a shortage of those dollars occurs, the government is forced to source dollars in other ways.
That sourcing could include borrowings via bonds and the like, or putting restrictions on hard currency whether attempting to send it out of the country or lowering the reserve requirement of deposits that banks must have on hand.
It is no secret dollars have been scarce in the DR for some time now. It is also no secret, but may be a surprise, that the dollars deposited in Dominican banks are not physically there anymore.......................just a portion as required by the monetary law relating to reserves needed to be kept on hand.
This new regulation only serves to preserve a bit more liquidity for the government to finance/pay its obligations with a bit more insecurity for depositors..............or is it as they say........merely a tool to control money laundering.................and the banking system is still sound?.
Those are the questions individual depositors need to ask and answer for themselves.
Respectfully,
Playacaribe2