About six months ago, I visited a pregnant friend in a maternity hospital in Kyiv. As it turned out, the majority of patients in the department were surrogate mothers about to give birth. Moreover, most of them had twins.
In practice, maternity hospitals conclude formal agreements with intermediary companies that provide "all-inclusive" services: they look for mothers, order medical examinations, monitor the process of pregnancy, implantation, timely medical tests, preparation of necessary paperwork, etc.
On average, the services of such companies cost 30-50 thousand dollars, of which about 13-15 are paid to the surrogate mother.
For foreigners, this is quite an affordable price and they willingly "order" twins, paying their mother an additional two thousand of dollars.
In the ideal situation, everything goes well and everyone is happy.
But this does not always happen.
Parents may become victims of unscrupulous intermediaries who choose surrogate mothers without proper screening. Or even of surrogate mothers themselves, who blackmail customers demanding more and more money.
The solution for such a situation would be a lawyer and a properly drawn up agreement. Moreover, the subject of the agreement is not a baby but surrogacy, pregnancy, etc.