PayPal put me 7000 negative because the buyer scam me, what can I do?

So, I sold a speaker for a buyer, and the guy sent money for me. That’s on hold for a while until the guy got his speaker and opened the money for me. Everything were fine, he texted me he was happy with the speaker blah blah blah so I withdraw my money to my bank and of course, spent it. And just couple days ago (1/2 month after I sold the speaker), I opened my PayPal and saw the money he sent on hold and my balance negative 7000!! He reported me to PayPal that he didn’t happy with my…

PayPal put me 7000 negative because the buyer scam me, what can I do?

PayPal put me 7000 negative because the buyer fucked me up, what can I do?

So, I sold a speaker for a buyer, and the guy sent money for me. That’s on hold for a while until the guy got his speaker and opened the money for me. Everything were fine, he texted me he was happy with the speaker blah blah blah so I withdraw my money to my bank and of course, spent it. And just couple days ago (1/2 month after I sold the speaker), I opened my PayPal and saw the money he sent on hold and my balance negative 7000!! He reported me to PayPal that he didn’t happy with my…

PayPal put me 7000 negative because the buyer fucked me up, what can I do?

Oracle Best-Buyer-Customer is Wholesale or Retail buyer

I have data warehouse with Fact table Orders, and CustomerDimension, and TimeDimention, and BookDimension.

CREATE TABLE DIM_CUSTOMER(     DIMCUSTID NUMBER(6) PRIMARY KEY,      CustId    NUMBER(4)   NOT NULL,     L_Name    VARCHAR(30) NOT NULL,     F_Name    VARCHAR(30) NOT NULL,     City      VARCHAR(20) NOT NULL,     Country   VARCHAR(20) NOT NULL )  CREATE TABLE TDIM_TIME(     TIMEID   DATE PRIMARY KEY,     DAY      NUMBER(2) NOT NULL,     MONTH    NUMBER(2) NOT NULL,     QUARTER  NUMBER(2) NOT NULL,     SEMESTER NUMBER(2) NOT NULL,     YEAR     NUMBER(5) NOT NULL )  CREATE TABLE TDIM_BOOK(     ISBN        NUMBER  PRIMARY KEY,     TITLE       VARCHAR(150) NOT NULL,     EDITIONNO   NUMBER(2) NOT NULL,     PRICE       NUMBER(5) NOT NULL,     AUTHORS     VARCHAR(400) NOT NULL,     PUB_NAME    VARCHAR(50) NOT NULL,     CITY        VARCHAR(30) NOT NULL,     COUNTRY     VARCHAR(30) NOT NULL )  CREATE TABLE TFACT_ORDER(     FACTORDERID NUMBER(9) PRIMARY KEY,     DIMCUSTID   NUMBER(6) NOT NULL,     ISBN        NUMBER    NOT NULL,     TIMEID      DATE      NOT NULL,     QUANTITY    NUMBER(3) NOT NULL,     PRICE       NUMBER(6) NOT NULL,     CONSTRAINT FK_TDIMBOOK FOREIGN KEY (ISBN)      REFERENCES hwu.TDIM_BOOK(ISBN),     CONSTRAINT FK_TDIMCUST FOREIGN KEY (DIMCUSTID)      REFERENCES hwu.TDIM_CUSTOMER(DIMCUSTID),     CONSTRAINT FK_TDIMTIME FOREIGN KEY (TIMEID)      REFERENCES hwu.TDIM_TIME(TIMEID) ) 

I need to find if my Best-Customer (Who had buy the most quantity of Books) had orders a lot of orders with low price (Retail Buyer), or he had order a few orders with high price (Wholesale Buyer).

How can I achieve this in Oracle?