The phrase "allegedly increased" is correct and usable in written English.
It can be used when discussing claims or reports about something that is said to have risen or grown, without confirming the truth of that claim.
Example: "The company's profits have allegedly increased over the last quarter, according to unofficial sources."
Alternatives: "reportedly increased" or "supposedly increased".
The agency said Mr Karpeles allegedly increased the outstanding balance of his dollar account twice by £640,000 or $1 million.
His fees were allegedly increased in 2003 when Mulcaire asked for an extra £250 a week to extend his services beyond 9am to 5pm and to cover "emergency calls outside these hours".
A year after that, the DOJ says a forum known as the "Cardersmarket" allegedly increased membership by taking over four rival marketplaces.
Initially proclaimed as a major conservation success as tiger populations allegedly increased, it was recognized as a failure in the 1980s largely because of illegal hunting.
It's views allegedly increased by roughly a million between Sept 15 to Nov 30.
Police believe at least some of the coke was bound for Christchurch, where demand for illicit drugs has allegedly increased following the 2011 earthquake.
Harvard Law professor Jonathan Zittrain explained in 2010 how "Facebook could decide an election without anyone ever finding out", after the tech giant secretly conducted a test in which they were able to allegedly increase voter turnout by 340,000 votes around the country on election day simply by showing users a photo of someone they knew saying "I voted".
Lilly has agreed to settle for $690 million a majority of the claims over its drug Zyprexa, an antipsychotic remedy that allegedly increases diabetes risk.
Glycosylation also allegedly increases the solubility of proteins [ 58, 59].
"No way," say your hired hands, the company managers, who have spent a staggering $2.1 trillion of your money in the last five years on stock buybacks allegedly to increase the company's earnings per share ratio, instead of increasing shareholder dividends.
In a statement on their blog, Hinge responded to a Vanity Fair article, which explored the rise of 'hook-up culture', allegedly from the increased use of dating apps.
